package RDD

object Demo {

  def main(args: Array[String]): Unit = {
    val strings = new Array[String](0) //建立0参数数组
    val strings1 = new Array[String](2) // 建立2参数数组,放入2个null


    strings.foreach(println)
    strings1.foreach(println)

    println(101 % 3)
    println(-101 % 3)


  }

}
